At30C Pull-Down & Pull-Up Temperture; At35C Pull-Down Pressure; At35C Pull-Down Temperture; At35C Pull-Down Current-Input - Panasonic MDF-DU702VH Service Manual

Ultra-low temperature freezer
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MDF-DU502VH(1φ220V 60Hz)
AT30℃ Pull-down & Pull-up Temperture
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
1
2
3
4
5
6
AT35℃ Pull-down Temperture
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
1
2
3
4
5
6
Pull-down
Pull-up
7
8
9
10 11 12 13 14 15
Time [hour]
1/2H
H EVA IN
H EVA OUT
L EVA IN
L EVA OUT
7
8
9
10 11 12 13 14 15
Time [hour]
AT35℃ Pull-down Pressure
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
AT35℃ Pull-down Current-Input
10
9
8
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
-53-
H Pd
H Ps
L Pd
L Ps
6
7
8
9
10 11 12 13 14 15
Time [hour]
Current
Input
7
8
9 10 11 12 13 14 15
Time [hour]
900
800
700
600
500
400
300
200
100
0

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